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鹰从未像他屈服于向乌鸦学习时那样失去如此多的时间。
The eagle never lost so much time as when he submitted to learn of the crow.
No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
"The past is always tense, the future perfect."
The energy transition is not just about switching fuels; it's about transforming entire economies and societies.
The knowledge of the past stays with us to spur us on to new achievements.